/Engine/Source/Runtime/AssetRegistry/Public/AssetRegistry/AssetRegistryState.h
Clear all referencers of the given category from the given AssetIdentifier (e.g. package). Also clears the dependency link from each of the referencers.
void ClearReferencers ( const [FAssetIdentifier](API\Runtime\CoreUObject\AssetRegistry\FAssetIdentifier) & AssetIdentifier, [UE::AssetRegistry::EDependencyCategory](API\Runtime\CoreUObject\Misc\UE__AssetRegistry__EDependencyCa-) Category )